The PM Portholes are made of hand-polished, anodized aluminum, which keeps them looking new longer. The lenses are "smoke" colored acrylic, 3/8" thick. These portholes are clamped in place by fasteners within the frame, not screwed through the cabinside, so there is no need to drill mounting holes.
• Cabinside thickness: 0.12" - 0.87"
• Optional aluminum framed mosquito screen
• PM porthole CE classification: Category A, Area III --- superstructure: parts of the boat - other than hull, deck, cockpit, coachroof, etc - on which people do not normally stand